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Shwu-Ruu Chern

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  • Taichung, TW
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Patents Grantslast 30 patents

  • Information Patent Grant

    Saw blade hand tool structure
    • Patent number 10,814,410
    • Issue date Oct 27, 2020
    • ZHENG KAI HARDWARE PRODUCTS (NANTONG) CO., LTD.
    • Shwu-Ruu Chern
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Rotary impact assembly structure
    • Patent number 10,569,392
    • Issue date Feb 25, 2020
    • Shwu Ruu Chern
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Ratchet wrench with planet gear unit
    • Patent number 10,065,292
    • Issue date Sep 4, 2018
    • Shwu Ruu Chern
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Ratchet wrench
    • Patent number 9,889,544
    • Issue date Feb 13, 2018
    • Shwu Ruu Chern
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    C-clip tool
    • Patent number 9,533,405
    • Issue date Jan 3, 2017
    • Shwu Ruu Chern
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Adjustable ratchet wrench
    • Patent number 9,457,455
    • Issue date Oct 4, 2016
    • Shwu Ruu Chern
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Multiple-function hand tool
    • Patent number 9,352,453
    • Issue date May 31, 2016
    • Shwu Ruu Chern
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Hammer structure
    • Patent number 9,283,665
    • Issue date Mar 15, 2016
    • Shwu Ruu Chern
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Ratchet handle
    • Patent number D724399
    • Issue date Mar 17, 2015
    • Shwu-Ruu Chern
    • D08 - Tools and hardware
  • Information Patent Grant

    Ratchet handle
    • Patent number D723893
    • Issue date Mar 10, 2015
    • Shwu-Ruu Chern
    • D08 - Tools and hardware
  • Information Patent Grant

    Adjustable wrench
    • Patent number 8,850,930
    • Issue date Oct 7, 2014
    • Shwu Ruu Chern
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Adjustable ratchet wrench
    • Patent number 8,555,751
    • Issue date Oct 15, 2013
    • Shwu Ruu Chern
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Ratchet tool suitable for cooperating with thread forming taps
    • Patent number 8,266,987
    • Issue date Sep 18, 2012
    • Shwu Ruu Chern
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Tool box
    • Patent number 7,681,731
    • Issue date Mar 23, 2010
    • Shwu Ruu Chern
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Device for quickly releasing socket from extension rod
    • Patent number 7,140,277
    • Issue date Nov 28, 2006
    • Shwu Ruu Chern
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC

Patents Applicationslast 30 patents

  • Information Patent Application

    RATCHET SCREWDRIVER WITH IMPROVED ROTATION EFFICIENCY
    • Publication number 20220305624
    • Publication date Sep 29, 2022
    • Zheng Kai Hardware Products (Nantong) Co., Ltd.
    • Shwu-Ruu Chern
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    Pipe wrench structure with secure positioning function
    • Publication number 20190299371
    • Publication date Oct 3, 2019
    • Shwu-Ruu Chern
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    ROTARY IMPACT ASSEMBLY STRUCTURE
    • Publication number 20190202037
    • Publication date Jul 4, 2019
    • Shwu-Ruu Chern
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    WRENCH WITH A MOVABLE POSITIONING ROD
    • Publication number 20190015960
    • Publication date Jan 17, 2019
    • Shwu-Ruu Chern
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    ANGLE ADJUSTABLE WRENCH
    • Publication number 20190015964
    • Publication date Jan 17, 2019
    • Shwu-Ruu Chern
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    ANTI-THEFT DISPLAY RACK
    • Publication number 20190014926
    • Publication date Jan 17, 2019
    • Shwu-Ruu Chern
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    OPENER FOR EASY-OPEN CANS
    • Publication number 20190016577
    • Publication date Jan 17, 2019
    • Shwu-Ruu Chern
    • B67 - OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS LIQUID...
  • Information Patent Application

    WRENCH WITH TWO DRIVING GEARS
    • Publication number 20180093366
    • Publication date Apr 5, 2018
    • Shwu-Ruu Chern
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    RATCHET WRENCH WITH PLANET GEAR UNIT
    • Publication number 20170266787
    • Publication date Sep 21, 2017
    • Shwu-Ruu Chern
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    ADJUSTABLE WRENCH
    • Publication number 20170165814
    • Publication date Jun 15, 2017
    • Shwu-Ruu Chern
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    RATCHET WRENCH
    • Publication number 20170120424
    • Publication date May 4, 2017
    • Shwu-Ruu Chern
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    SPRAY HEAD ASSEMBLY
    • Publication number 20160175868
    • Publication date Jun 23, 2016
    • Shwu-Ruu Chern
    • B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
  • Information Patent Application

    HAND TOOL WITH ROTATABLE FUNCTION UNIT
    • Publication number 20160176023
    • Publication date Jun 23, 2016
    • Shwu-Ruu Chern
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    C-CLIP TOOL
    • Publication number 20160059397
    • Publication date Mar 3, 2016
    • Shwu-Ruu Chern
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    ADJUSTABLE WRENCH
    • Publication number 20160059393
    • Publication date Mar 3, 2016
    • Shwu-Ruu Chern
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    PROTECTION DEVICE FOR TOOL BOX
    • Publication number 20150165617
    • Publication date Jun 18, 2015
    • Shwu-Ruu Chern
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    UNIVERSAL CONNECTOR UNIT
    • Publication number 20150165605
    • Publication date Jun 18, 2015
    • Shwu-Ruu Chern
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    HOLDING UNIT FOR SOCKETS
    • Publication number 20150165616
    • Publication date Jun 18, 2015
    • Shwu-Ruu Chern
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    ADJUSTABLE RATCHET WRENCH
    • Publication number 20150165599
    • Publication date Jun 18, 2015
    • Shwu-Ruu Chern
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    MULTIPLE-FUNCTION HAND TOOL
    • Publication number 20150165597
    • Publication date Jun 18, 2015
    • Shwu-Ruu Chern
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    ADJUSTABLE RATCHET WRENCH
    • Publication number 20150158153
    • Publication date Jun 11, 2015
    • Shwu-Ruu Chern
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Application

    HAMMER STRUCTURE
    • Publication number 20150158164
    • Publication date Jun 11, 2015
    • Shwu-Ruu Chern
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS